Patents by Inventor Tsukasa Funasaka

Tsukasa Funasaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11098704
    Abstract: A structure according to an embodiment includes a first substrate including a first valve and a second substrate joined to the first substrate. The structure includes a region where the first valve and the second substrate are not joined. A sticking suppressing section is provided in at least one of the first valve and the second substrate in the region. By configuring the structure in this way, it is possible to suppress sticking of the first valve to the second substrate in the structure including the first substrate including the first valve and the second substrate joined to the first substrate.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: August 24, 2021
    Inventors: Tsukasa Funasaka, Yuki Hanamura
  • Patent number: 11047375
    Abstract: A diaphragm-type compressor includes a substrate, an actuator, a diaphragm provided between the substrate and the actuator, and a case in which the diaphragm, the actuator, and the substrate are provided. A recessed section formed at the actuator side of the substrate and the actuator overlap in a plan view. The case has an inflow port of fluid further on the actuator side than the substrate based on the position of the diaphragm. The substrate includes a suction port for causing the recessed section to suck the fluid.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 29, 2021
    Inventors: Tsukasa Funasaka, Yuki Hanamura
  • Publication number: 20200408203
    Abstract: A diaphragm compressor includes first structure having a first pressing part, a first diaphragm, and a first substrate partially separated from the first diaphragm and partially joined to the first diaphragm, a second structure having a second pressing part, a second diaphragm, and a second substrate partially separated from the second diaphragm and partially joined to the second diaphragm, the first structure and the second structure being stacked in a stacking direction in which the first diaphragm and the first substrate are stacked, wherein the first pressing part is placed at sides of the first diaphragm opposite to the first substrate, and a first separation portion between the first diaphragm and the first substrate is part of a first channel in which a fluid flows, the second pressing part is placed at sides of the second diaphragm opposite to the second substrate, and a second separation portion between the second diaphragm and the second substrate is part of a second channel in which a fluid flows,
    Type: Application
    Filed: June 24, 2020
    Publication date: December 31, 2020
    Inventors: Tsukasa FUNASAKA, Yuki HANAMURA, Yasunori ONISHI
  • Publication number: 20200200163
    Abstract: A displacement magnifying device includes a diaphragm structure including a substrate and a diaphragm provided separately from the substrate, actuators provided side by side with the diaphragm structure, and a first member including displacing sections coupled to both ends of the actuators and displaced according to displacement of the actuators. The displacing sections are coupled to the diaphragm of the diaphragm structure.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Inventors: Tsukasa FUNASAKA, Yuki HANAMURA
  • Publication number: 20200056605
    Abstract: A structure according to an embodiment includes a first substrate including a first valve and a second substrate joined to the first substrate. The structure includes a region where the first valve and the second substrate are not joined. A sticking suppressing section is provided in at least one of the first valve and the second substrate in the region. By configuring the structure in this way, it is possible to suppress sticking of the first valve to the second substrate in the structure including the first substrate including the first valve and the second substrate joined to the first substrate.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 20, 2020
    Inventors: Tsukasa FUNASAKA, Yuki HANAMURA
  • Publication number: 20200049141
    Abstract: A diaphragm-type compressor includes a substrate, a diaphragm, and an actuator, the substrate, the diaphragm, and the actuator being laminated and provided in this order. In a plan view from a direction of the lamination, the diaphragm includes a first film section that overlaps the actuator and a second film section that does not overlap the actuator. A step is provided on a surface at the diaphragm side of the substrate. A portion corresponding to the first film section and a portion corresponding to the second film section of the substrate are respectively different stages.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Inventors: Tsukasa FUNASAKA, Yuki HANAMURA
  • Publication number: 20200040885
    Abstract: A diaphragm-type compressor includes a substrate, an actuator, a diaphragm provided between the substrate and the actuator, and a case in which the diaphragm, the actuator, and the substrate are provided. A recessed section formed at the actuator side of the substrate and the actuator overlap in a plan view. The case has an inflow port of fluid further on the actuator side than the substrate based on the position of the diaphragm. The substrate includes a suction port for causing the recessed section to suck the fluid.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Inventors: Tsukasa FUNASAKA, Yuki HANAMURA
  • Patent number: 10495958
    Abstract: A cooling device of an optical element includes a circulation passage through which a fluid circulates. The circulation passage includes a window portion that is disposed on an incidence side or an emission side of the optical element and transmits light, an evaporation portion that is connected to the window portion and includes a plurality of channel portions, and a heat radiation portion that radiates heat of the fluid. The fluid transmits the light in a liquid state. The fluid is a liquid in the window portion. The fluid that is a liquid evaporates to vapor in the plurality of channel portions. The fluid that is vapor condenses into a liquid in the heat radiation portion. A sectional area of each channel portion is less than a sectional area of a boundary between the window portion and the evaporation portion.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: December 3, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Yuki Hanamura, Tsukasa Funasaka
  • Publication number: 20190343492
    Abstract: An ultrasonic device includes: a substrate provided with a first opening and a second opening; a support film that is provided on the substrate and blocks the first opening and the second opening; a transmitting piezoelectric film that is provided on the support film at a position which overlaps the first opening when viewed in a thickness direction of the substrate and is interposed between a pair of electrodes in the thickness direction of the substrate; and a receiving piezoelectric film that is provided on the support film at a position which overlaps the second opening when viewed in the thickness direction of the substrate and is interposed between a pair of electrodes in the thickness direction of the substrate. In the thickness direction of the substrate, a thickness dimension of the transmitting piezoelectric film is smaller than a thickness dimension of the receiving piezoelectric film.
    Type: Application
    Filed: April 18, 2017
    Publication date: November 14, 2019
    Inventors: Hiromu MIYAZAWA, Hiroshi ITO, Tomoaki NAKAMURA, Masayoshi YAMADA, Kanechika KIYOSE, Tsukasa FUNASAKA
  • Patent number: 10458957
    Abstract: An ultrasonic device includes: a substrate provided with a first opening and a second opening; a support film that is provided on the substrate and closes the first opening and the second opening; a transmitting piezoelectric film that is provided on the support film at a position which overlaps the first opening when viewed in a thickness direction of the substrate and that is sandwiched between a pair of electrodes in the thickness direction of the substrate; and a receiving piezoelectric film that is provided on the support film at a position which overlaps the second opening when viewed in the thickness direction of the substrate and that is sandwiched between a pair of electrodes in an intersecting direction intersecting with the thickness direction of the substrate.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 29, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hiromu Miyazawa, Hiroshi Ito, Tomoaki Nakamura, Masayoshi Yamada, Kanechika Kiyose, Tsukasa Funasaka
  • Patent number: 10363574
    Abstract: A piezoelectric element which includes a vibrating film, a piezoelectric body disposed on one surface of the vibrating film, and a horizontal electrode structure in which electrodes are disposed at a predetermined gap therebetween on the piezoelectric body. The vibrating film includes a recess portion in a portion corresponding to the predetermined gap in plan view.
    Type: Grant
    Filed: October 1, 2016
    Date of Patent: July 30, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hiromu Miyazawa, Hiroshi Ito, Tomoaki Nakamura, Masayoshi Yamada, Jiro Tsuruno, Tsukasa Funasaka
  • Publication number: 20190204722
    Abstract: A cooling device of an optical element includes a circulation passage through which a fluid circulates. The circulation passage includes a window portion that is disposed on an incidence side or an emission side of the optical element and transmits light, an evaporation portion that is connected to the window portion and includes a plurality of channel portions, and a heat radiation portion that radiates heat of the fluid. The fluid transmits the light in a liquid state. The fluid is a liquid in the window portion. The fluid that is a liquid evaporates to vapor in the plurality of channel portions. The fluid that is vapor condenses into a liquid in the heat radiation portion. A sectional area of each channel portion is less than a sectional area of a boundary between the window portion and the evaporation portion.
    Type: Application
    Filed: December 20, 2018
    Publication date: July 4, 2019
    Inventors: Yuki HANAMURA, Tsukasa FUNASAKA
  • Patent number: 10086405
    Abstract: A piezoelectric element includes a vibrating film, a piezoelectric body, a first electrode, a second electrode, and a groove. The piezoelectric body is arranged upon the vibrating film. The first electrode is arranged upon the piezoelectric body. The second electrode is arranged upon the piezoelectric body and at a position that is separated from the first electrode. The groove is located between the first electrode and the second electrode and splits a surface of the piezoelectric body in two, as seen in plan view from a thickness direction of the vibrating film.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: October 2, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Jiro Tsuruno, Tsukasa Funasaka, Tomoaki Nakamura, Hiromu Miyazawa, Hiroshi Ito, Masayoshi Yamada
  • Publication number: 20180059067
    Abstract: An ultrasonic device includes: a substrate provided with a first opening and a second opening; a support film that is provided on the substrate and closes the first opening and the second opening; a transmitting piezoelectric film that is provided on the support film at a position which overlaps the first opening when viewed in a thickness direction of the substrate and that is sandwiched between a pair of electrodes in the thickness direction of the substrate; and a receiving piezoelectric film that is provided on the support film at a position which overlaps the second opening when viewed in the thickness direction of the substrate and that is sandwiched between a pair of electrodes in an intersecting direction intersecting with the thickness direction of the substrate.
    Type: Application
    Filed: August 21, 2017
    Publication date: March 1, 2018
    Inventors: Hiromu MIYAZAWA, Hiroshi ITO, Tomoaki NAKAMURA, Masayoshi YAMADA, Kanechika KIYOSE, Tsukasa FUNASAKA
  • Publication number: 20170119349
    Abstract: A receiving transducer includes: a flexible portion; a piezoelectric film provided on the flexible portion; a first electrode provided between a first surface of the flexible portion, on which the piezoelectric body is provided, and a second surface of the piezoelectric film that is a surface not facing the flexible portion; and a second electrode that is provided between the first and second surfaces and that faces the first electrode with a gap interposed therebetween in plan view as viewed from the thickness direction of the flexible portion.
    Type: Application
    Filed: October 24, 2016
    Publication date: May 4, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hiromu MIYAZAWA, Hiroshi ITO, Tomoaki NAKAMURA, Masayoshi YAMADA, Sayaka YAMASAKI, Tsukasa FUNASAKA
  • Publication number: 20170095837
    Abstract: A piezoelectric element which includes a vibrating film, a piezoelectric body disposed on one surface of the vibrating film, and a horizontal electrode structure in which electrodes are disposed at a predetermined gap therebetween on the piezoelectric body. The vibrating film includes a recess portion in a portion corresponding to the predetermined gap in plan view.
    Type: Application
    Filed: October 1, 2016
    Publication date: April 6, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hiromu MIYAZAWA, Hiroshi ITO, Tomoaki NAKAMURA, Masayoshi YAMADA, Jiro TSURUNO, Tsukasa FUNASAKA
  • Patent number: 9459387
    Abstract: An optical filter includes first and second substrates, first and second mirrors, and first and second electrodes. The first substrate has a flat surface. The second substrate includes a first surface, a second surface and a third surface, the second surface surrounding the first surface in a plan view, the third surface surrounding the second surface in a plan view, a height of the first surface above the second surface being lower than a height of the third surface above the second surface, the first surface and the second surface facing the flat surface of the first substrate. The first mirror is disposed on the flat surface of the first substrate. The second mirror is disposed on the first surface of the second substrate, the second mirror facing the first mirror. The first electrode is disposed on the flat surface of the first substrate. The second electrode is disposed on the second surface of the second substrate, the second electrode facing the first electrode.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: October 4, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Tsukasa Funasaka
  • Patent number: 9246077
    Abstract: An ultrasonic transducer device includes an ultrasonic transducer element array, a first signal terminal, and a second signal terminal. The ultrasonic transducer element array has a 1st element group to a kth element group (where k is a natural number such that k?2). The first signal terminal is connected with a control section configured and arranged to perform at least one of receiving and transmitting of signals. The second signal terminal is connected with the first signal terminal via the ultrasonic transducer element array. Each of the 1st element group to the kth element group includes a plurality of ultrasonic transducer elements electrically connected in series. The 1st element group to the kth element group are electrically connected in parallel between the first signal terminal and the second signal terminal.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: January 26, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Matsuda, Tsukasa Funasaka
  • Patent number: 9195047
    Abstract: An optical filter includes a first substrate, a first mirror formed on the first substrate, a second substrate coupled to the first substrate, the second substrate including a concave portion, a second mirror formed on the concave portion and facing the first mirror, and an electrode formed on the second substrate and around the second mirror. The first substrate includes a plurality of first hinge portions and a plurality of second hinge portions inside the plurality of first hinge portions.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: November 24, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Yuki Hanamura, Takeo Funakawa, Tsukasa Funasaka
  • Publication number: 20150273526
    Abstract: A piezoelectric element includes a vibrating film, a piezoelectric body, a first electrode, a second electrode, and a groove. The piezoelectric body is arranged upon the vibrating film. The first electrode is arranged upon the piezoelectric body. The second electrode is arranged upon the piezoelectric body and at a position that is separated from the first electrode. The groove is located between the first electrode and the second electrode and splits a surface of the piezoelectric body in two, as seen in plan view from a thickness direction of the vibrating film.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Jiro TSURUNO, Tsukasa FUNASAKA, Tomoaki NAKAMURA, Hiromu MIYAZAWA, Hiroshi ITO, Masayoshi YAMADA